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HTC One X Jelly Bean Update: How To Manually Install Android 4.2.1 Using Custom ROM

By iDigital Times Staff Reporter on December 31, 2012 10:15 AM EST 0

htc one x
The HTC One X can be updated to Android 4.2.1 Jelly Bean using a custom ROM. The manual installation in inherently risky, so users should proceed with caution. (Photo: flickr.com / John.Karakatsanis)

The HTC One X is one of the most well-respected and widely used Android smartphones on the market because of its incredibly sleek design and excellent hardware capacity. Despite the tremendous success of the HTC One X, many users are still waiting to upgrade their phones to Android 4.2.1 Jelly Bean.

Thanks to the seemingly never-ending pool of developers, HTC One X users no longer need to wait for an over-the-air update. The HTC One X can been updated to Android 4.2.1 Jelly Bean thanks to a number of custom ROMs that have been released by the Android developer community. The ROMs that have been created for the HTC One X are entirely based around Android 4.2.1 Jelly Bean, and they can often be updated more frequently than the carrier version of the operating system.

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With Android 4.2.1 Jelly Bean, HTC One X users will get one of the fastest and smoothest versions of Android yet. Thanks to "Project Butter," an initiative created by Google, switching between screen and opening applications has never been smoother. The system has also been tweaked to provide faster orientation changes, and it also features the new Google Now service, which basically aggregates all the most pertinent information -- such as flight information, sports scores, nearby events, weather and more -- into one location.

Please note: this method of upgrading the HTC One X to Android 4.2.1 Jelly Bean requires flashing your device. It should also be noted that these instructions are only application to the international variant of the HTC One X. It will not work on any other device. There are only a few bugs with this particular ROM, and they're listed here. This tutorial is meant to be used as a reference, and iDigital Times can't be held responsible for anything that goes wrong during this process. Please proceed at your own risk.

Here's how to update the HTC One X to Android 4.2.1 Jelly Bean using the AOKP IceCold Jelly Custom ROM:

Step One: Prepare your device for the custom ROM installation. Backup all of the media and important information on your device, just in case anything goes wrong. Also, make sure that all the correct USB drivers are installed on your computer. Enable USB debugging mode by going to Settings > Developer Options, or, Settings > Applications > Development. If you're already running Android 4.2 Jelly Bean, go to Settings > About Phone and tap the "Build Number" entry seven times. Finally, ensure that your device is plugged in, that its bootloader is unlocked and that ClockworkMod Recovery is installed on it.

Step Two: Download Android 4.2.1 IceColdJelly ROM on your computer and extract boot.img from the zip file. Also, download Google Apps.

Step Three: Connect your HTC One X to your computer using the USB cable. Mount your HTC One X to your computer.

Step Four: Copy the AOKP IceColdJelly ROM and Google Apps zip files to the root folder on the HTC One X's SD card.

Step Five: Copy and past the boot.img file to the android-sdk-windowsplatform-tools directory.

Step Six: Turn off your phone and boot into bootloader mode. In order to do that, turn on the phone while holding the Volume Down and Power buttons together.

Step Seven: Navigate to android-sdk-windowsplatform-tools directory on your computer and launch Command Prompt by pressing Shift and Right-click > Open Command Prompt. Then, type "fastboot flash boot boot.img" and hit enter. Next, type "fastboot reboot" and hit enter.

Step Eight: Follow the instructions onscreen and select Bootloader, then enter Recovery Mode. In Clockworkmod recovery, clear the date first. Then, navigate to Flash zip from SD card and hit the Power button to select it. Hit the power button again and choose zip from SD card.

Step Nine: Use the volume keys to navigate to the Android 4.2.1 ROM zip file and select it by tapping the Power button. Confirm the ROM installation when asked. The installation will begin. During this process, do not interrupt the process as it could ruin your phone.

Step Ten: After the ROM has installed, select "Go Back" and reboot the phone by tapping "Reboot System Now" in the recovery menu. The phone will automatically reboot. It may take about 5 minutes for the phone to reboot. Be patient.

Step Eleven: Enjoy!

For further information, check out the tutorial at Team Android.

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